1  /* Override generic sotruss-lib.c to define actual functions for s390.
       2     Copyright (C) 2012-2023 Free Software Foundation, Inc.
       3  
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library.  If not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #define HAVE_ARCH_PLTENTER
      21  #define HAVE_ARCH_PLTEXIT
      22  
      23  #include <elf/sotruss-lib.c>
      24  
      25  #if __ELF_NATIVE_CLASS == 32
      26  # define la_s390_gnu_pltenter	la_s390_32_gnu_pltenter
      27  # define la_s390_gnu_pltexit	la_s390_32_gnu_pltexit
      28  # define La_s390_regs		La_s390_32_regs
      29  # define La_s390_retval		La_s390_32_retval
      30  #else
      31  # define la_s390_gnu_pltenter	la_s390_64_gnu_pltenter
      32  # define la_s390_gnu_pltexit	la_s390_64_gnu_pltexit
      33  # define La_s390_regs		La_s390_64_regs
      34  # define La_s390_retval		La_s390_64_retval
      35  #endif
      36  
      37  ElfW(Addr)
      38  la_s390_gnu_pltenter (ElfW(Sym) *sym,
      39  		      unsigned int ndx __attribute__ ((unused)),
      40  		      uintptr_t *refcook, uintptr_t *defcook,
      41  		      La_s390_regs *regs, unsigned int *flags,
      42  		      const char *symname, long int *framesizep)
      43  {
      44    print_enter (refcook, defcook, symname,
      45  	       regs->lr_r2, regs->lr_r3, regs->lr_r4, *flags);
      46  
      47    /* No need to copy anything, we will not need the parameters in any case.  */
      48    *framesizep = 0;
      49  
      50    return sym->st_value;
      51  }
      52  
      53  unsigned int
      54  la_s390_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
      55  		     uintptr_t *defcook,
      56  		     const struct La_s390_regs *inregs,
      57  		     struct La_s390_retval *outregs, const char *symname)
      58  {
      59    print_exit (refcook, defcook, symname, outregs->lrv_r2);
      60  
      61    return 0;
      62  }